NAME

Algorithm::KernelKMeans::Util

DESCRIPTION

This module provides some utility functions suitable to use with Algorithm::KernelKMeans.

FUNCTIONS

This module exports nothing by default. You can import functions below:

centroid($cluster)

Takes array ref of vertices and returns centroid vector of the cluster.

generate_polynominal_kernel([$l = 1], [$p = 2])

Generates a polynominal kernel function and returns it.

The generated kernel function will be formed K(x1, x2) = ($l + x1 . x2)^$p ("x1 . x2" means inner product).

AUTHOR

Koichi SATOH <r.sekia@gmail.com>